| All Patents in class 81/101 |
Patents 1 -
15
of 47
      |
| Number | Date | Patentee | Title | Type |
| 56,166 | Jul. 10, 1866 | B. Boardman | Improved Tool | wrench combination tools |
| 65,111 | May 28, 1867 | J.L. Ordner | Pipe Wrench | wrench jaw components |
| 184,993 | Dec. 05, 1876 | D.C. Stillson | Wrench | pipe and nut combination wrenches |
| 203,261 | May 07, 1878 | L. Glynn | Pipe-Wrench | pipe wrenches |
| 233,893 | Nov. 02, 1880 | J.C. Stevens | Pipe and Nut Wrench | pipe wrenches |
| 262,263 | Aug. 08, 1882 | C.C. Walworth | Improvement in Pipe-Wrenches | pipe wrenches |
| 345,777 | Jul. 20, 1886 | G.E. Franklin | Pipe Wrench | pipe wrenches |
| 383,544 | May 29, 1888 | J. Rose | Pipe Wrench | pipe wrenches |
| 397,618 | Feb. 12, 1889 | J.H. Vinton | Pipe Wrench | pipe wrenches |
| 414,663 | Nov. 05, 1889 | J.H. Vinton | TRIMO pipe wrench | pipe wrenches |
| 441,188 | Nov. 25, 1890 | W.E. Murbarger | Pipe Wrench | pipe wrenches |
| 450,681 | Apr. 21, 1891 | D.R. Porter | Wrench | pipe wrenches |
| 452,518 | May 19, 1891 | F.S. Cook | Wrench | pipe wrenches |
| 454,612 | Jun. 23, 1891 | B. Donahue | Wrench | wrench jaw components |
| 482,281 | Sep. 06, 1892 | G.B. Stevenson | Improvements in Pipe-Wrenches | pipe wrenches |
